CENSUS RECORDS: 23 Aug 1850 District #1, Caldwell County, Kentucky film #7847,
There is his mother-in-law Sarah Thompson and a Nelly Campbell age 47 born in Caldwell County, Kentucky also living in the family.

In 1853, Cyrus and his family moved to Hardin County, Illinois and settled near Cave-in-Rock on property still known as Beavers' Hill.

In February of 1860 a "plague" struck in Hardin County, Illinois, and Cyrus, his son Thomas and daughter Sarah died.